A firewall is a programmed software that can be activated through setting. a firewall is designed to protect the computer from viruses and malware etc.
I personally hate it because it is always saying games from game jolt and even steam games are dangerous. hope i helped
Display Properties is the screen that should be open
A lightning can last 30 microseconds.
"javac <FILE NAME>" (unsurprisingly, stands for "java compile"), will compile your java source code in to a .java file, that can be run with the "java <FILE NAME>" command.
Make sure that your command prompt is set to the right destination when you run these commands, using "cd <DESTINATION>", otherwise they may be unable to find them in the incorrect destination.
